Added two convenience methods to access an int/double argument from within a

src/arguments.h

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 45 matching lines @@
   }
 
   template <class S> Handle<S> at(int index) {
     Object** value = &((*this)[index]);
     // This cast checks that the object we're accessing does indeed have the
     // expected type.
     S::cast(*value);
     return Handle<S>(reinterpret_cast<S**>(value));
   }
 
+  int smi_at(int index) {
+    return Smi::cast((*this)[index])->value();
+  }
+
+  double number_at(int index) {
+    return (*this)[index]->Number();
+  }
+
   // Get the total number of arguments including the receiver.
   int length() const { return length_; }
 
   Object** arguments() { return arguments_; }
  private:
   int length_;
   Object** arguments_;
 };
 
 
@@ skipping 33 matching lines @@
 #define RUNTIME_FUNCTION(Type, Name)            \
 Type Name(Arguments args, Isolate* isolate)
 
 
 #define RUNTIME_ARGUMENTS(isolate, args) args, isolate
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_ARGUMENTS_H_